org-archive-subtree: Invalid ‘org-archive-location’ Mark set

Question

I get this when I try to archive a subtree. My config reads

(setq org-archive-location "~/mega/org/archive.org")

which does exist. So what am I doing wrong here?

Answer 1

If you use C-h v and type in org-archive-location you will see the documentation. There you can see the original value ("%s_archive::") and a few examples

"~/org/archive.org::" , "::* Archived Tasks" or "~/org/archive.org::* From %s"

Now you will probably already realize that you need the double colon in your string.

Syntax seems to be the following:

"/path/::Heading" 

So your solution should be:

(setq org-archive-location "~/mega/org/archive.org::")